Hi, im a new guy here (just few weeks) love my 745li but i am so pissed off with this annoying buzzing sound comming out of my driver side that i posted it for sale. basicly the car came with a jl audio system that had a 300wt amp hooked up to the speakers. iono why the hell the previous owner would do that but he did. so after taking to 4 different shops and getting 4 different opinions i decided to get rid of the amp and leave the stock L7. after doing so its been about 4 days and the buzzin sound is back. not as loud but i can hear it. and on top of that the driver side ALL the speakers are soundless. I have installed countless systems on bunch of Japanese and American cars but never dealt with such BS. so do you guys thing its the L7 (in my opinion it is) and if so what the hell can i do or send to fix it. I dnt want to spend 400 bucks on a 2.95 dollar part. any suggestions would be great before i go crazy inofe to burn the car. thnks.